TY - JOUR
T1 - Functionalization of the Surface of Poly[bis(trifLuoroethoxy)phosphazene] by Reactions with Alkoxide Nucleophiles
AU - Allcock, Harry R.
AU - Fitzpatrick, Richard J.
AU - Salvati, Lawrence
PY - 1991/5/1
Y1 - 1991/5/1
N2 - Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.
AB - Films of poly[bis(trifluoroethoxy)phosphazene], [NP(OCH2CF3)]n, underwent surface reactions when treated with solutions of sodium alkoxides such as Na+−(OCH2CH2)xOH, where x = 1, 2, or 4; Na+−(OCH2CH2)xNH2, where x = 1 or 2; and Na+−OCH2CH2CN. The nucleophiles replaced trifluoroethoxy groups at the polymer surface without detectable side reactions. The modified surfaces were more hydrophilic than the starting material. The presence of the new surface groups was confirmed by contact-angle measurements, SEM, XPS, TEM, and ATR-IR methods. The accessibility of the surface hydroxyl and amino groups to further functionalization was confirmed by the reaction of these groups with phenyl isocyanate.
UR - http://www.scopus.com/inward/record.url?scp=0043109930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0043109930&partnerID=8YFLogxK
U2 - 10.1021/cm00015a018
DO - 10.1021/cm00015a018
M3 - Article
AN - SCOPUS:0043109930
SN - 0897-4756
VL - 3
SP - 450
EP - 454
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 3
ER -